Premium
Associations between the rates of maturation of the bones of the hand‐wrist
Author(s) -
Roche A. F.
Publication year - 1970
Publication title -
american journal of physical anthropology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.146
H-Index - 119
eISSN - 1096-8644
pISSN - 0002-9483
DOI - 10.1002/ajpa.1330330308
Subject(s) - phalanx , ulna , bone age , numerical digit , linear regression , wrist , anatomy , orthodontics , biology , demography , mathematics , medicine , statistics , arithmetic , sociology
Abstract Skeletal maturation rates for the age interval 3 to 13 years were analyzed using bone‐specific assessments (Greulich‐Pyle) of serial radiographs of 40 children. The mean rates of skeletal maturation resembled those of the population from which the atlas standards had been derived. There was a linear trend of skeletal age against chronological age for most bones in each sex. Regression lines were fitted to these data and the b values of the regression lines were calculated. Communality indices were calculated from an intercorrelation matrix of these b values. There was a statistically significant rank order correlation between the sexes in the communality indices. They tended to be higher in the girls than in the boys and were relatively low for the radius, ulna and carpals. Communality indices within groups of bones were high in all rows, especially the metacarpals, but in each sex they were comparatively low in the first ray (metacarpal plus the phalanges of the corresponding digit) and in the fifth ray of the boys. Neighborhood effects on the levels of association of maturation rates were present, particularly in the carpus, but marginal effects were not noted.